Riveting tool



D Z0" Z5 3 E Nov. 10, 1925- 1 H. L. BISHOP RIVETING TOOL Filed March 7, 1925 Fly Elm vented (1cm new Patented Nov. 1%, 1925.

M at

. assists ItIVETING T0011.

Application filed March '7, 1925.

To all whom it may concern Be it known that I, I'IARRY LAVON BIsHor, a citizen of the United States, residing at Arcadia, in the county of De Soto and State of Florida, have invented a new and useful ltiveting Tool, of which the following is a specification.

This invention relates to the riveting tool and more particularly to a tool of this kind used in connection with hollow or split rivets.

The object of the invention is to provide a simple, strong, cheap structure for use in riveting small work such as relining transmission bands and the like, and which may be quickly and easily operated with a minimum exertion of force.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 represents a side elevation of a tool constructed. in accordance with this invention;

Fig. 2 is a top plan view thereof;

Fig. 3 is a rear elevation with the handle or operating lever shown in section;

Fig. 4 is a front elevation thereof with parts broken out; and

Fig. 5 is a perspective view showing a punch for use in connection with the riveting apparatus with the parts thereof arranged in juxtaposition ready for assembling.

The tool constituting this invention c01nprises a supporting frame made in the form of a base 1 preferably constructed of a heavy metal bar and a top member 2 of a corresponding shape and size spaced vertically above the base and supported by standards arranged in pairs at the rear end and the center of the frame such standards being numbered 3 and 4t and 5 and 6 respectively. The intermediate standards 5 and 6 are longer than those at the rear of the Serial No. 13,881.

frame and extend above the top bar 2 having their ends converging and form a supiorit for a beam '2 which is fnlcruined intermediate its ends between the upper ends of the standards 5 and 6. p

A plunger 8 extends loosely through the rear end of the top bar 2 with its upper end located directly beneath the rear end of beam 7 and its lower end rests on the front end of a lever 10 which is fulcrnmed between the standards 3 and 4 about midway the length of said standards. The lever 10 projects some distance to the rear of the sup-porting frame and may be of any desired length according to the leverage desired for operating the tool.

Another plunger 11 is mounted to reciprocate in the front end of bar 2 and is provided at its upper end with a bifurcated detachable head 12 between the furcations 13 of'which the front end of beam 7 is mounted and which is held engaged with said beam by means of a coiled spring 14-. Another coiled spring 15 encircles the plunger 11 below the bar 2 and bears at one end against said bar and at the other against collar 16 Fred to the plunger, a. d which operates to retard the upward movement of the slunger.

A pair of spring lingers 1'? and 18 depend from collar 16 at diametrically opposite sides thereof and have their free ends bent inwardly to form clamps for securing the rivets in connection with which the tool is to be used. The lower end of the plunger 11 is reduced to form a rivet engaging hammer 19 located between the inturned ends of. the fingers 17 and 18 as is shown clearly in Fig. 1. A die 20 is tit-zed to the base of this tool to cooperate with the plunger in riveting.

In the use of this tool the rivet is placed with the head gripped between the fingers 17 and 18 and abutting against the reduced plunger end 19 and when inserted between the goods to be secured it is located directly over the die 20. The lever 10 is then lowered into the dotted line position shown in Fig. 1 which elevates plunger 8 and thus forces the rear end of the beam 2 up and its front end down causing the plunger 11 to be depressed against the tension of its spring 14 thus forcing the rivets into operative clinching position. When pressure on the lever 10 is released the coiled spring i l will operate to raise the front ends of the beam '4" and therelrv force the rear end down causing: the rear plunger 8 to move downwardly against the front end of lcv r 10 and hold'it in the position shown in lull lines in Fig. 1 ready for the next operation.

The head 1:2 of the front plunger 11 be ing reinotille dilierent torins oi plungers may be substituted for that shown at ll and in Fig. 5 a punch 21 is shown having areduced "ended upper end for engage mien? i. the head l2? and at its lower end is cqrf pod with a punching die designed to enter socket 2-51: in a die which is substitutee in]? the die 2r) when the punch 21 is used.

l im

l. riveting: tool comprising a support ing mine, a spring retracted plunger ion .i t ret procate therein and having holding the rivets to be set, a beam ns'l c Billed on said frame with one end ensaid plunger, anotner plunger enthe oil er end oi said beam, and a lever for actuating said last mentioned plunger to operate the beau'i and actuate the spring pressed plunger.

2. in a tool of? the class described, a supporting frame. a heani tuleruined intermediate its ends on said frame. a spring pressed plunger located below one end oi said beam and engaged therewith, a freely inovalile plunger located beneath the other end of said beam, rivet carrying means on the spring pressed plunger, and a. lever fulcruined in said frame with one end engaging the freely' movable plunger whereby the actuation of the lever will operate the beam plungei'sv a lever tulcrunied between two of said. tandards and having one end engaged \Ylfii the last mentioned plunger whereby the operation of the lever will actuate the heme to depress the spring projected ph'znger against the tension of the spring.

In a tool of the class described a supmrting strrzcture. plungers mounted to reate in said structure, a beam ful- 'uti ends and supported i 'zediate i.. i d one of said plungers, the other of said plunc ers having a detachable bifurcated head engaged with said beam and provided with coiled spring to normally move the beam upward and retract the plunger, spring lingers carried by said last mentioned plunger for holding the rivets to he riveted, an a lever engaging the other plunger \vhereoy the lowering of the lever will operate to elevate one end of the beam and lower the other thereby forcing the spring pressed plunger downward into operating position.

in testimony that I claim the foregoing as my own, l have hereto aflixed my signature.

HARRY LAVON BISHOP. 

